Hamish wrote:
[...]
Luigi Ponti wrote:
The SVN conversion script is something I have tried to figure out for
a while: great! It always challenges me to find ways to dynamically
generate raster color maps.
I have understood that the algorithm is able to scale a 0-255 color map
to the 0-65535 range; I am not sure how it could be adapted to scale to
any range of data. Questions:
[...]
Thanks for the detailed description of your script. It keeps amazing me
how many things an awk script can do in a couple of lines.
The goal would be to develop a script which would take the
data range of any raster and scale a 0-255 color rule to it.
scale 0-255 to 0-100 and add a % sign. r.colors will do the rest.
r=
g=
b=
RULE="`echo $EIGHTBIT | awk '{print $1 / 2.55}'`% $r:$g:$b"
-> if $EIGHTBIT=255 then $RULE becomes "100% r:g:b"
Really a good tip -- will implement it right away.
Regards,
Luigi
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